Start integration test for hiera 5

Author: kpaulisse

spec/octocatalog-diff/fixtures/repos/hiera5/config/hiera5-global.yaml

@@ -0,0 +1,16 @@
+---
+version: 5
+defaults:
+  datadir: hieradata
+  data_hash: yaml_data
+
+hierarchy:
+  - name: "Default structure data"
+    path: "nodes/%{app}.yaml"
+
+  - name: "Special data"
+    path: "%{app}.yaml"
+    datadir: "special"
+
+  - name: "Common data"
+    path: "common.yaml"

spec/octocatalog-diff/integration/hiera5_spec.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+require_relative 'integration_helper'
+
+describe 'repository with hiera 5' do
+  context 'with --hiera-path and per-item data directory' do
+    it 'should fail because per-item datadir is not supported with --hiera-path' do
+      argv = ['-n', 'rspec-node.github.net']
+      hash = { hiera_config: 'config/hiera5-global.yaml', spec_fact_file: 'facts.yaml', spec_repo: 'hiera5' }
+      result = OctocatalogDiff::Integration.integration(hash.merge(argv: argv))
+      expect(result.exitcode).to eq(-1), OctocatalogDiff::Integration.format_exception(result)
+      expect(result.exception).to be_a_kind_of(ArgumentError)
+      expect(result.exception.message).to match(/Hierarchy item .+ has a datadir/)
+    end
+  end
+end